There are franchises that make me feel young and giddy when I report on them -- such as anything to do with the X-Men or J.R.R. Tolkien. Then there are character franchises that make me acutely aware of how old and bitter I am. Teenage Mutant Ninja Turtles is one of them. This is the 25th anniversary of the heroes in a half shell, and there's going to be a "Shell-ebration" tomorrow at the Tribeca Film Festival with a screening of the first film. They're also lighting the Empire State Building green in honor of New York's finest reptiles.

They're also getting a new movie, as Variety reports that the Ninja Turtles are returning to live action for a new movie that will focus on their sewer-based origin story. It will hit theaters in 2011, with original creator Peter Laird as one of the producers. That's all there is for now, except that it may employ the same CG-face technology as Where the Wild Things Are.

25 years! That's what makes me feel old. The Ninja Turtles were one of my chief childhood obsessions. Every happy memory I have is wrapped up in them, such as my dad acquiescing to my tearful pleas and buying me tickets to their concert, and my grandma asking me what toy I would like most, and hunting down a Donatello for me. But I grew up. To be honest, I kind of forgot about them. To think that they've inspired enough industry and city devotion to light the Empire State Building green makes me rather guilty for forgetting, and for not being that excited about a new movie. Perhaps my nostalgia is just buried very deep in order to protect the fuzzy memory of that Donatello ... or maybe I've become a very bad person.

Do you think there should be another TMNT movie?